EP2282137B1 - Unité d'échangeur thermique comprenant des éléments de direction de flux d'air - Google Patents

Unité d'échangeur thermique comprenant des éléments de direction de flux d'air Download PDF

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Publication number
EP2282137B1
EP2282137B1 EP10007375.8A EP10007375A EP2282137B1 EP 2282137 B1 EP2282137 B1 EP 2282137B1 EP 10007375 A EP10007375 A EP 10007375A EP 2282137 B1 EP2282137 B1 EP 2282137B1
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EP
European Patent Office
Prior art keywords
heat exchanger
tube segment
exchanger unit
outer tube
inner tube
Prior art date
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Application number
EP10007375.8A
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German (de)
English (en)
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EP2282137A1 (fr
Inventor
Theodor Blum
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/12—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of sliding members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00321—Heat exchangers for air-conditioning devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00664—Construction or arrangement of damper doors
    • B60H1/00671—Damper doors moved by rotation; Grilles
    • B60H1/00685—Damper doors moved by rotation; Grilles the door being a rotating disc or cylinder or part thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/03—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant
    • B60H1/039—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant from air leaving the interior of the vehicle, i.e. heat recovery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels

Definitions

  • the invention relates to a heat exchanger unit having the features of the preamble of claim 1.
  • Such a heat exchanger unit is known by German Utility Model 91 10 870.5.
  • the heat exchanger unit is used in an air conditioner for a motor vehicle, wherein an air flow control element is provided in the form of a damper, with which the fresh air supply and the hot air supply are controlled. By the position of the damper either the fresh air supply or the hot air supply can be shut off or it can be an admixture of hot air to fresh air.
  • Air dampers have the disadvantage that a large flow resistance is given and that flow noises occur. Since the air damper is located outside the heat exchanger, in addition, a large amount of space is required.
  • Another heat exchanger is through the WO 2006/073232 A1 known.
  • This heat exchanger four individual inner tube segments are provided, each inner tube segment having up to two opposite incisions.
  • the inner tube segments are rotatable in several steps of 90 ° relative to the outer tube segment. The various positions cause a release of heat of a warm air flow to a heat exchanger element or a recording of heat of a cold air flow from the heat exchanger element.
  • a ventilation device is through the DE 100 13 689 A1 known.
  • two nested tube sections are provided, the lateral surfaces distributed over the circumference and can be brought into covering position openings.
  • the object of the invention is thus seen to develop the heat exchanger unit of the type mentioned in such a way that a compact heat exchanger unit is formed, wherein the air flow control elements have a low flow resistance and which cause hardly perceptible noise.
  • this should be achieved with structurally simple means.
  • the invention proposes that the heat exchanger unit is formed according to the preamble of claim 1 corresponding to the characterizing part of this claim.
  • the rotary valves are integrated in the heat exchanger unit, so that a compact heat exchanger unit is created, which takes up little space. Due to their tubular design, the rotary valves themselves have a low flow resistance so that practically no flow noises occur during operation. By the position of the inner tube segment and the outer tube segment to each other, the steering of the air currents is determined. Such a rotary valve is structurally easy to produce, since it is constructed only of two pipe elements.
  • an embodiment of the invention provides that the inner tube segment and the outer tube segment each correspond to a longitudinally partially halved tube with a 180 ° jacket.
  • a congruent position of the inner tube segment and the outer tube segment of the rotary valve is open, while at an opposite position of the inner tube segment to the outer tube segment of the rotary valve is closed.
  • the inner tube segment to the outer tube segment relative to the congruent position rotated exactly 180 °.
  • the integrated in the heat exchanger rotary valves is distinguished between two different designs of rotary valves.
  • There are large rotary valves and small rotary valves are provided.
  • the length of the inner tube segment advantageously corresponds to half the length of the outer tube segment, while in the case of the small rotary valve, the length of the inner tube segment corresponds to the length of the outer tube segment.
  • the inner tube segment is arranged concentrically within the outer tube segment.
  • a different number of the two types of rotary valves can be integrated within the heat exchanger.
  • three rotary valves are provided on one end face of the heat exchanger, wherein a small rotary valve is arranged between two large rotary valves.
  • the in Fig.1 shown in individual parts rotary valve 1 consists of an outer tube segment 2, an inner tube segment 3, an electric drive unit 4 and a closure cover 5.
  • the outer tube segment 2 may be made of metal or plastic and is cut out of a tube such that in the region of a first incision 6 and a second incision 7, the tube is bisected in the longitudinal direction, in the region of the two incisions 6, 7 a half tube with a 180 ° sheath as in Fig.1 shown to form.
  • Through the two incisions 6, 7 still remain a first Rohrendabêt 8, a second Rohrendab songs 9 and a pipe center portion 10 with a full 360 ° -Ummantelung left.
  • the diameter of the inner tube segment 3 is slightly smaller than the diameter of the outer tube segment 2, so that in the further production, the inner tube segment 3 can be pushed into the outer tube segment 2, wherein in the end position of the first tube end 8 of the outer tube segment 2 with the first tube end portion 8 of Inner tube segment 3 overlaps and the tube middle section 10 of the outer tube segment 2 overlaps with the second tube end portion 9 of the inner tube segment 3.
  • the electric drive unit 4 is then attached and the other end face of the rotary valve 1 remains open.
  • This type of rotary valve 1 is referred to as a large rotary valve 1.
  • Fig.2 shows the open position of the large rotary valve 1, wherein the concentrically arranged half-tubes of the outer tube segment 2 and the inner tube segment 3 overlap congruent.
  • the rotary valve 1 is now open. If the inner tube segment 3 from the congruent position rotated 180 ° relative to the outer tube segment 2, then the two half-tubes of the outer tube segment 2 and the inner tube segment 3 face each other and the rotary valve 1 is in the closed position, as in Figure 3 shown because the area of the first incision 6 is now closed.
  • the in Figure 4 shown in parts rotary valve 12 is referred to as a small rotary valve.
  • This small rotary valve is produced in the same way as the large rotary valve 1, but with the difference that the length of the inner tube segment 3 corresponds to the length of the outer tube segment 2.
  • the inner tube segment 3 also has two cuts 6, 7 as the outer tube segment 2.
  • the electric drive unit 4 and opposite, in contrast to the rotary valve 1, always the closure lid 5 is arranged.
  • the small rotary valve 12 is brought from an open position to a closed position, in contrast to the large rotary valve 1, the small rotary valve 12th is closed in the region of the two incisions 6, 7.
  • FIG. 7 shows a section through the heat exchanger 11, wherein on one end face of the heat exchanger 11, two large rotary valve 1 and between a small rotary valve 12 are arranged. At the other end face of the heat exchanger 11, no complete large rotary valve 1 but only two outer tube segments 2 as in the large rotary valve 1 are provided. Each outer tube segment 2 is closed at one end face with a closure lid 5. In between there is a small rotary valve 12. Between the rotary valves 12 and the heat exchanger 11, an insulating intermediate plate is provided, which separates the two heat exchanger halves.
  • Fig.8 and Fig.9 show the normal heat exchanger operation.
  • a first air flow 13 enters into one of the outer tube segments 2 with respect to the closure lid 5 and flows through the draft of a first and second plane of the heat exchanger 11 into one of the large rotary valves 1.
  • the inner tube segment 3 of the large rotary valve 1 is rotated such that the inner tube segment 3 and the outer tube segment 2 are congruent, so that the rotary valve 1 is open and the first air flow 13 can freely pass through the rotary valve 1 with respect to the drive unit 4.
  • the second air flow 14 occurs in relation to the drive unit 4 in the inner tube segment 3 of the other large rotary valve 1.
  • the inner tube segment 3 is rotated so that it is congruent with the outer tube segment 2, so that the rotary valve 1 is opened.
  • the second air flow 14 thus flows against the first air flow 13 through the air flows of the first and second plane of the heat exchanger 11 and further into the other outer tube segment 2 and then exits through the opening opposite the closure lid 5. This results in an almost complete temperature transfer from the first air stream 13 to the second air stream 14.
  • Fig.10 to Fig.12 show the avoidance of temperature transfer from the first air flow 13 to the second air flow 14.
  • the two large rotary valves 1 are closed halfway, by the respective inner tube segments 3 are rotated by 180 ° relative to the corresponding outer tube segments 2.
  • the first air flow 13 now passes unchanged through the opening in the outer tube segment 2, but can now only pass through the air passages of the first level of the heat exchanger 11 in the outer tube segment 2 and exit through the opening with respect to the drive unit 4.
  • the second air duct 14 enters into the outer tube segment 2 of the rotary valve 1 with respect to the drive unit 4 and can only flow through the region of the open incision into the air flows of the second plane of the heat exchanger 11 and exit through the outer tube segment 2 again with respect to the closure lid 5.
  • the night-time cooling system can contribute to room cooling without significant energy expenditure.
  • the two small rotary valves 12 are closed.
  • part of the first air flow 13 can be supplied to the second air flow 14.
  • This function is advantageous in an air conditioner when the outside temperature is higher than the desired room temperature and the Peltier heat pump following in the air conditioner in the air flow direction is operating in the cooling mode.
  • the second air flow acting 14 exhaust air flow as much outside air through this bypass zulugeben that with the larger air flow volume, the larger amount of heat can be absorbed and carried as exhaust air to the outside becomes.
  • the cooling performance on the warm side of the Peltier heat pump improves solely by raising the air flow through a fan.
  • FIG. 13 shows how part of the exhaust air flow is supplied to the outside air flow. This is advantageous for receiving the larger amount of heat on the hot side of the Peltier heat pump in the heating mode and is supplied as supply air to the room. Only by increasing the capacity of a fan in the air conditioner so the heating capacity is significantly improved.
  • the volume of the first air stream 13 can be optimized for the heat transport as supply air.
  • the proportion of exhaust air, which is supplied as a bypass to the air stream 13, is characterized in recirculation mode. Meanwhile, the small rotary valve 12 is closed.
  • the heat exchanger unit according to the invention with air flow directing elements is compact and also allows a compact design of ventilation, heating and air conditioning units. Another advantage is the low air resistance of the air flow control elements and thus the avoidance of flow noise.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Multiple-Way Valves (AREA)

Claims (11)

  1. Unité d'échange thermique pour un appareil de climatisation d'un véhicule, pour le transfert de chaleur d'un premier écoulement d'air à un deuxième écoulement d'air, comprenant un échangeur thermique (11) et des éléments de guidage d'écoulement d'air (1, 12),
    caractérisée en ce
    que les éléments de guidage d'écoulement d'air sont des tiroirs rotatifs (1, 12) qui sont disposées directement sur les deux côtés frontaux faisant fonction de côté d'entrée d'air et côté de sortie d'air de l'échangeur thermique (11), de sorte que les tiroirs rotatifs sont intégrés dans l'unité d'échange thermique, chaque tiroir rotatif (1, 12) étant composé d'un segment de tube extérieur (2) et d'un segment de tube intérieur (3) pouvant tourner par rapport au segment de tube extérieur (2).
  2. Unité d'échange thermique selon la revendication 1,
    caractérisée en ce
    que le segment de tube intérieur (3) et le segment de tube extérieur (2) correspondent chacun à un tube partiellement divisé en deux dans la direction longitudinale, avec un gainage sur 180°.
  3. Unité d'échange thermique selon la revendication 1 ou 2,
    caractérisée en ce
    que le tiroir rotatif (1, 12) est ouvert lorsque le segment de tube intérieur (3) et le segment de tube extérieur (2) sont dans une position coïncidente.
  4. Unité d'échange thermique selon une des revendications précédentes,
    caractérisée en ce
    que le tiroir rotatif (1, 12) est fermé lorsque le segment de tube intérieur (3) et le segment de tube extérieur (2) sont dans une position opposée.
  5. Unité d'échange thermique selon une des revendications 3 ou 4,
    caractérisée en ce
    que dans la position fermée du tiroir rotatif (1, 12), le segment de tube intérieur (3) est tourné de 180° par rapport au segment de tube extérieur (2) comparé à la position coïncidente.
  6. Unité d'échange thermique selon une des revendications précédentes,
    caractérisée en ce
    que le segment de tube intérieur (3) est disposé concentriquement à l'intérieur du segment de tube extérieur (2).
  7. Unité d'échange thermique selon une des revendications précédentes,
    caractérisée en ce
    que la longueur du segment de tube intérieur (3) correspond à la longueur du segment de tube extérieur (2).
  8. Unité d'échange thermique selon une des revendications précédentes 1 à 6,
    caractérisée en ce
    que la longueur du segment de tube intérieur (3) correspond à la moitié de la longueur du segment de tube extérieur (2).
  9. Unité d'échange thermique selon une des revendications précédentes,
    caractérisée en ce
    que trois tiroirs rotatifs (1, 12) sont disposés sur un premier côté frontal de l'échangeur thermique (11).
  10. Unité d'échange thermique selon la revendication 9,
    caractérisée en ce
    que les trois tiroirs rotatifs (1, 12) sont deux grands tiroirs rotatifs (1) et un petit tiroir rotatif (12), le petit tiroir rotatif (12) étant disposé entre les deux grands tiroirs rotatifs (1).
  11. Unité d'échange thermique selon une des revendications précédentes,
    caractérisée en ce
    qu'un petit tiroir rotatif (12) est disposé sur un deuxième côté frontal de l'échangeur thermique (11).
EP10007375.8A 2009-08-04 2010-07-16 Unité d'échangeur thermique comprenant des éléments de direction de flux d'air Active EP2282137B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009010548U DE202009010548U1 (de) 2009-08-04 2009-08-04 Wärmetauscher mit Luftstromlenkungselementen

Publications (2)

Publication Number Publication Date
EP2282137A1 EP2282137A1 (fr) 2011-02-09
EP2282137B1 true EP2282137B1 (fr) 2013-05-29

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Application Number Title Priority Date Filing Date
EP10007375.8A Active EP2282137B1 (fr) 2009-08-04 2010-07-16 Unité d'échangeur thermique comprenant des éléments de direction de flux d'air

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EP (1) EP2282137B1 (fr)
DE (1) DE202009010548U1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9110870U1 (fr) 1990-09-13 1991-10-24 Siemens Ag, 8000 Muenchen, De
CA2572501C (fr) * 2000-03-14 2009-09-22 Air-Change Pty Limited Echangeur thermique
DE10013689A1 (de) * 2000-03-21 2001-09-27 Siegenia Frank Kg Lüftungsvorrichtung
KR100620502B1 (ko) * 2005-01-10 2006-09-13 정인숙 열교환기 및 이를 이용한 열교환 환기장치

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DE202009010548U1 (de) 2009-12-17
EP2282137A1 (fr) 2011-02-09

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